Just over nine months ago, Tottenham were celebrating a 2-1 victory against North London rivals Arsenal- they moved seven points clear of the Gunners and extended their unbeaten league run to 12 games.

These days, it's an entirely different story at White Hart Lane.

On Monday, manager Andre Villas-Boas was sacked due to 6-0 and 5-0 drubbings from Man City and Liverpool respectively. More worrying for Tottenham fans however is that they lack creativity, solidarity at the back and perhaps most importantly, goals.

So why has this sudden lack of form occurred after such a promising pre-season? We look through the reasons...

Summer signings

This summer, Spurs spent over £110million on Erik Lamela, Roberto Soldado, Paulinho, Christian Eriksen, Etienne Capoue, Nasir Chadli and Vlad Chiriches.

Despite losing the outstanding Gareth Bale to Real Madrid for a world record £86million, their was a cause for optimism for Spurs fans with the supposed quality that the club brought in. Unfortunately though, the singings have performed to nowhere near their capabilities.

Soldado, an experienced Spanish striker who bagged a hat-trick in the Champions League last season, has netted only one league goal from open play this season (he's scored three penalties).

£30million man Lamela, who attracted the attention of many European clubs with is dazzling displays for Roma last season, has had virtually no impact at all and has been outshone by England hopeful Andros Townsend.

Paulinho, who was sent off amid the drubbing at the hands of Liverpool on Sunday, has been inconsistent and Danish international Eriksen has showed glimpses of brilliance but has not nailed down the No.10 role just yet.

Buying without thinking? Perhaps, but Spurs need at least two of their new recruits to start performing if they want to be top four contenders this season.

Departure of Gareth Bale

As mentioned before, Bale finally left for the nine time European champions after a long summer of negotiations. The Welshman's performances was undoubtably the main reason for Spurs finishing as high as they did, with superb winners against West Ham, Southampton and Sunderland, to name a few.

When Spurs did not play well, he would more often than not, bail them out and provide that moment of brilliance. 

Now however Spurs have lots of good players but no longer a player of Bale's class. If you asked the fans what they would rather have, all those players but no Bale or just Bale without the signings, the answer would most likely be the latter.

Considering the form he is in for Real Madrid, it has left Spurs fans pondering as to whether selling him was the right option or not, despite the money received for him.

Style of play

It's one thing not winning matches but if the team hardly produce anything throughout the whole match, that is when you are really allowed to worry.

Too many times this season have Spurs lacked creativity, movement and a genuine threat to their opposition. Spaniard Soldado may have a poor goal scoring record at the moment but he has certainly been lacking in service from the players in behind him such as Aaron Lennon, Lamela, Moussa Dembele, Eriksen, Lewis Holtby and Chadli.

To not have a shot on target at home on any occasion is very poor, but for a club of Spurs' stature, it is extremely worrying indeed.

Impatience of the Chairman

Since Daniel Levy has been chairman of Spurs, there has always been a pressure on managers to deliver the standards to what he expects. His impatient nature has led to the downfall of several managers over the years, most notably Martin Jol, Juande Ramos, Harry Redknapp and now AVB. 

With the money spent over the summer, AVB would have known that he had to produce the goods and when you lose at home 5-0, with Levy around, you are treading on thin ice as a manager.

Many argue that he should have been given time and who knows, maybe the the former Chelsea boss could have turned it around.

There is no doubt that his dismissal has disrupted Spurs even further and with no immediate replacement, it's up to the players for the time being.

On current form, it doesn't look promising.

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